A group of Hindu devotees perform the rituals of Charak Puja festival on April 14, 2018 in Maulvibazar, Bangladesh. Charak Puja, a very enchanting folk festival of Southern Belt of Bangladesh. Also known as Nil Puja.The believers of the Hindu religion celebrate this day to carry prosperity and to forget the grief and sufferings of the previous year. Charak Puja is a traditional Bangladeshi festival celebrated mainly in the rural areas by the Hindus. This Puja is also known as ’’Nil Puja’’, ’’ Hajrha Puja’’ or ‘’Batri Charak’’. The believers of the Hindu religion celebrate this puja on the last day of Chaitra month (Chaitra is the last month of Bangla calendar). Charak puja is also popular as ‘’Chaitra Songkranti’’. The day of Charak Puja is also known as ‘’Gajan’’. The Hindus believe that the festival will carry prosperity by eliminating the sorrow and the sufferings of the previous year. The Puja festival is actually a festival to satisfy ‘’Lord Shiva’ ’the great ‘’Debadideb’’ of Hindu religion and to be blessed with happiness and prosperity by the Lord Shiva. Though the festival takes place on the mid night of ‘’Chaitra Songkranti’’ , the preparation phase usually starts before one month of the puja day.